<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>【案例】猜数字游戏</title>
    <script>
        function getRandom(min,max){
            return Math.floor(Math.random()* (max - min + 1) +min);
        }
        var random = getRandom(1,10);
        while(true){
            var num = prompt('猜数字，范围在1~10之间。');
            if(num > random){
                alert('你猜大了');
            }else if(num < random){
                alert('你猜小了');
            }else{
                alert('恭喜你,猜对了');
                break;
            }
        }
    </script>
</head>
<body>

</body>
</html>